Manakau is a settlement situated in the Horowhenua District, located at the boundary of the Manawatū-Whanganui and Wellington regions of New Zealand's North Island. It lies 8 km north of Ōtaki and 12 km south of Levin, and is connected to both via State Highway 1, which skirts Manakau's western edge. The township is situated 5 km inland from the coast of the Tasman Sea. In 1886, Manakau became the first place to have a railway station on the newly completed Wellington-Manawatu railway line.